第二章单元测试
- Biomass energy is one nonrenewable energy source.( )
- Nuclear energy is renewable energy source.( )
- Underground mining of coal may cause subsidence.( )
- Resources are smaller than reserves.( )
- Surface mining of coal may cause landscape disturbance。( )
A:错 B:对
答案:错
A:错 B:对
答案:错
A:对 B:错
答案:对
A:对 B:错
答案:错
A:错 B:对
答案:对
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